142787465 has 4 divisors (see below), whose sum is σ = 171344964. Its totient is φ = 114229968.

The previous prime is 142787431. The next prime is 142787467. The reversal of 142787465 is 564787241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49336576 + 93450889 = 7024^2 + 9667^2 .

It is a cyclic number.

It is not a de Polignac number, because 142787465 - 2¹² = 142783369 is a prime.

It is a super-2 number, since 2×142787465² = 40776520322252450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142787467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14278742 + ... + 14278751.

It is an arithmetic number, because the mean of its divisors is an integer number (42836241).

Almost surely, 2^142787465 is an apocalyptic number.

It is an amenable number.

142787465 is a deficient number, since it is larger than the sum of its proper divisors (28557499).

142787465 is an equidigital number, since it uses as much as digits as its factorization.

142787465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28557498.

The product of its digits is 376320, while the sum is 44.

The square root of 142787465 is about 11949.3709039430. The cubic root of 142787465 is about 522.6729538928.

The spelling of 142787465 in words is "one hundred forty-two million, seven hundred eighty-seven thousand, four hundred sixty-five".